You may need to adjust the number of JES2 internal readers dedicated to handling jobs submitted by TSO/E users. When users issue the TSO/E SUBMIT command to submit a job for batch processing, a JES internal reader dedicated to TSO/E jobs reads the job onto the spool. The number of internal readers available determines how many TSO/E jobs can be simultaneously read onto the spool, and can affect how quickly jobs are processed. As a starting point, you should define one internal reader for every five users logged onto TSO/E. To specify the number of internal readers, use the JES2 INTRDR initialization statement. For more information about using the JES2 INTRDR initialization statement, see .